"The Reserve Bank of India will shortly issue Rs 100 denomination banknotes with inset letter 'G', in both the numbering panels, in the Mahatma Gandhi Series-2005 , bearing the signature of D Subbarao, Governor, RBI, and the year of printing 2012 printed on the reverse of the banknote," RBI said in a notification today.

The design of these notes to be issued now is similar in all respects to the Rs 100 banknotes in Mahatma Gandhi Series- 2005, issued earlier, it said.

"All the banknotes in the denomination of Rs 100 issued by the Bank in the past will continue to be legal tender".